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Metamath Proof Explorer


Theorem simp-5l

Description: Simplification of a conjunction. (Contributed by Mario Carneiro, 4-Jan-2017) (Proof shortened by Wolf Lammen, 24-May-2022)

Ref Expression
Assertion simp-5l φ ψ χ θ τ η φ

Proof

Step Hyp Ref Expression
1 id φ φ
2 1 ad5antr φ ψ χ θ τ η φ